Abstract

The effect of second-harmonic loading on power amplifiers operated with a low-voltage supply is investigated. Closed-form expressions and design formulas are derived, making use of a simplified device model. The correctness of the assumptions and the range of validity of the derived expressions is then verified by means of a full non-linear analysis method and model: a sample low-voltage design for a power stage is performed, demonstrating the potentials of the method.

Abstract

The effect of second-harmonic loading on power amplifiers operated with a low-voltage supply is investigated. Closed-form expressions and design formulas are derived, making use of a simplified device model. The correctness of the assumptions and the range of validity of the derived expressions is then verified by means of a full non-linear analysis method and model: a sample low-voltage design for a power stage is performed, demonstrating the potentials of the method.